Embedded Design of Compact Broadband Omnidirectional Antenna With Quad-Polarization Diversity
| Autor: | Xiaoxiang Ding, Zhiqin Zhao, Zaiping Nie, Qing Huo Liu |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Physics
business.industry Bandwidth (signal processing) 020206 networking & telecommunications 02 engineering and technology Wavelength Optics Embedded design Broadband 0202 electrical engineering electronic engineering information engineering Electrical and Electronic Engineering Center frequency business Omnidirectional antenna Polarization diversity Diode |
| Zdroj: | IEEE Antennas and Wireless Propagation Letters. 20:18-22 |
| ISSN: | 1548-5757 1536-1225 |
| DOI: | 10.1109/lawp.2020.3036970 |
| Popis: | A compact and broadband omnidirectional antenna is proposed for quad-polarization diversity. Novel reconfigurable structures of omnidirectional vertical polarization (VP) and horizontal polarization (HP) elements based on embedded design are put forward to achieve low-profile. A simplified equivalent LC cascaded circuit is modeled to better understand the broadband VP element and guide its design. In order to realize quad-polarization diversity, an advanced switchable feed network, which contains ten p-i-n diodes with four output states are carefully designed. Measured results show that the overlapped bandwidth for all operation modes is 20.5% (2.28–2.8 GHz) within a compact size of 0.69 λ 0 × 0.69 λ 0 × 0.064 λ 0, where λ 0 is the free-space wavelength at the center frequency 2.5 GHz. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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